❮
Today Hourly 7 days 30 days May
❯

May 2026 Weather | Chicago, Illinois

Today 5/27
Cloudy Weather
Day 79°
Night 55°
2
Thu 5/28
Cloudy Weather
Day 64°
Night 54°
1
Fri 5/29
Cloudy Weather
Day 73°
Night 59°
2
Sat 5/30
Cloudy Weather
Day 68°
Night 55°
9
Sun 5/31
Cloudy Weather
Day 68°
Night 59°
14

Explore U.S. Weather Trends

❄️ Coldest Cities in the U.S. – Live Temperature Rankings 🔥 Hottest Cities Today – Real-Time Heat Observations ⚠️ Active Weather Alerts – Warnings, Watches & Advisories 🌪️ Windiest Cities – Highest Sustained Wind Speeds 🌫️ Worst Air Quality – Cities with the Highest AQI 🍃 Best Air Quality – Cities with the Lowest AQI